| Presentation | 2007/6/8 An identification algorithm approximating nonlinear amplitude property with polygonal curve Ryo AOKI, Kensaku FUJII, Mitsuji MUNEYASU, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes an adaptive algorithm for identifying unknown systems containing nonlinear amplitude characteristics. Usually, the nonlinearity can be neglected. However, in low cost systems, such as acoustic echo canceller using a small loudspeaker, the nonlinearlty reduces the performance of the systems. Some methods preventing the reduction, approximations by a polynomial and Volterra series, are hence proposed and studied. A problem is that the approximation requires high processing cost. In this paper, we propose a method approximating the nonlinearlity with a polygonal curve and verify using computer simulations that the performance can be improved. Moreover, this paper gives a method reducing the processing cost for the polygonal curve approximation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | nonlinear amplitude property / adaptive algorithm / polygonal curve approximation / acoustic echo canceller |
| Paper # | SIS2007-16 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2007/6/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An identification algorithm approximating nonlinear amplitude property with polygonal curve |
| Sub Title (in English) | |
| Keyword(1) | nonlinear amplitude property |
| Keyword(2) | adaptive algorithm |
| Keyword(3) | polygonal curve approximation |
| Keyword(4) | acoustic echo canceller |
| 1st Author's Name | Ryo AOKI |
| 1st Author's Affiliation | Faculty of Engineering, Himeji Institute of Technology() |
| 2nd Author's Name | Kensaku FUJII |
| 2nd Author's Affiliation | Faculty of Engineering, Himeji Institute of Technology |
| 3rd Author's Name | Mitsuji MUNEYASU |
| 3rd Author's Affiliation | Faculty of Engineering, Kansai University |
| Date | 2007/6/8 |
| Paper # | SIS2007-16 |
| Volume (vol) | vol.107 |
| Number (no) | 94 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |